This will quickly explain how I optimized my Intel HD on my X1 Carbon 6th gen ThinkPad for FreeBSD using the drm-next-kmod port.
Also how to set the DPI settings for X (i3wm specifically).
I forgot to mention I added this line to my i3wm startup:xrandr --dpi 220
Laptop screen now looks [almost] as good as a Mac. :)
Smooth and crisp + high performance. No screen tearing (only when I attempt to record a screencast while compositing is turned on).